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Re: Keying interface

 

Ron, Thank you. I'm trying to learn these optocouplers?so I need to figure out on my own.
Attached is my drawing. After looking around I may order? a few 4N25's.
Bob W4JFA

On Sun, Jan 12, 2025 at 10:24?AM Ron via <rolexa=wirelessimplementation.com@groups.io> wrote:
Another simple almost complete interface costing a few $$:? An Arduino 12V relay module.? It has an optoisolator input driving a reed relay.? 12V power, and a couple cables are all that's needed to make the interface.? I've used it to connect my Ten Tec Jupiter to my Heathkit HL2200 linear.??
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Opto2.jpg

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